Time left 0:45:06Question 15Not yet answeredMarked out of 1Flag questionTipsQuestion textWhat document type explains how student responses to assessment tasks will be evaluated?Question 15Answera.Marking Schemeb.Curriculum Guidec.Student Profiled.Report Card          Clear my choiceQuestion 16Not yet answeredMarked out of 1Flag questionTipsQuestion textIf a test has a median 30 and a mode of 40, then the mean would most likely be Question 16Answera.45b.60c.35d.20Clear my choiceQuestion 17Not yet answeredMarked out of 1Flag questionTipsQuestion textThe following distribution of scores were obtained for a Social Studies quiz.                                        12      4      1      5     9       4     0    What is the median score of the distribution? Question 17Answera.7b.3c.4d.5

Time left 0:26:37Question 21Not yet answeredMarked out of 1.00Flag questionTipsQuestion text Which ONE of the following is an example of a non-cognitive test?    Question 21Answera.Intelligence Test  b.Attitude Testc.Aptitude Testd.Power TestClear my choiceQuestion 22Not yet answeredMarked out of 1.00Flag questionTipsQuestion textThe MAIN purpose of a Table of Specifications in test construction is toQuestion 22Answera.align the content and cognitive levels of the testb.ensure that the test measures a single type of knowledgec.determine the grading scale of the test.d.outline the administrative procedures for the test.

Time left 0:47:21Question 11Not yet answeredMarked out of 1Flag questionTipsQuestion textQuestionFacility IndexDiscrimination Index120.80.4250.50.3320.70.6400.40.3Which one of the questions, based on the indices, is BEST suited to be included in a revised version of the test?Question 11Answera.25b.40c.32d.12Clear my choiceQuestion 12Not yet answeredMarked out of 1Flag questionTipsQuestion textThe scatter diagram shows scores of 10 students on Mathematics and Science. The correlation between Mathematics and Science can be described asQuestion 12Answera.strongly positiveb.weak positivec.strongly negatived.weak negativeClear my choiceQuestion 13Not yet answeredMarked out of 1Flag questionTipsQuestion textMs. George obtained a reliability index of -.85 for her two English tests. Which of the following is a possible cause for the reliability index?         i. High scores were obtained for the first test and high scores for the second test.      ii. High scores were obtained for the first test and low scores for the second test.     iii. Low scores were obtained for the first test and low scores for the second test.Question 13Answera.ii onlyb.i onlyc.i, ii and iiid.i and ii onlyClear my choiceQuestion 14Not yet answeredMarked out of 1Flag questionTipsQuestion textAfter comparing two sets of scores, a correlation coefficient of zero was obtained. This indicates that  Question 14Answera.the variables are independent of each other  b.there is a strong positive relationship between the two variables.c. there is a strong negative relationship between the two variables.d.there is no linear relationship between the two variables

0:35:59Question 18Not yet answeredMarked out of 6.00Flag questionTipsQUESTION 3PART 1A student is taking a multiple choice test consisting of five questions, each with four options for each question. The student selects the answers at random.a) What is the probability that the student will get at least one question correct?b) Calculate the expected number of questions correct.PART 2A sample of 100 people is selected for a survey, among the questions asked was"Do you like Statistics?" and "Do you live in Wollongong?". Of the 100 people,  80 said they like Statistics, 53 people said they like Statistics and also live in Wollongong(at the same time), 15 people said they don't like Statistics and also don't live in Wollongong (at the same time).a) Find the following probability, P(Likes Statistics | Live in Wollongong)b) Are the events "Likes Statistics" and "Lives in Wollongong" statistically independent?Show your working by typing your answer in the text box below.

Question 31Not yet answeredMarked out of 1.00Flag questionTipsQuestion textIn the original field trial design for the Salk polio vaccine, only second graders with permission from their parents were administered the treatment. Thus, the treatment group became _________.Question 31Answera.self-selectingb.controlledc.randomd.skewedClear my choiceQuestion 32Not yet answeredMarked out of 1.00Flag questionTipsQuestion textIf elements in a sample data set increase arithmetically, then _____________.Question 32Answera.the mode and the arithmetic mean differ significantlyb.the median and arithmetic mean are equalc.the mode and the arithmetic mean are equald.the median and arithmetic mean differ significantlyClear my choiceQuestion 33Not yet answeredMarked out of 1.00Flag questionTipsQuestion textHow does the addition rule determine the probability of two events occurring?Question 33Answera.P(A or B) is the sum of the P(A) and P(B), minus the P(A and B)b.P(A or B) is the sum of the P(A and B) minus P(A) and P(B)c.P(A or B) is the sum of the P(A) and P(B)d.P(A or B) is the sum of the P(A) and P(B), minus the P(A)Clear my choiceQuestion 34Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhich of the following would NOT be considered a potential cause for an outlier?Question 34Answera.random samplingb.changes in system behaviorc.human errord.fraudulent behaviorClear my choiceQuestion 35Not yet answeredMarked out of 1.00Flag questionTipsQuestion textHow large is the sample size, given a standard deviation of 8 and 95% confidence interval with an error of no more than 3 points?Question 35Answera.4.4b.19.36c.67.7d.30.1

Question 16Not yet answeredMarked out of 1.00Flag questionTipsQuestion text"A class of 50 students scored an average of a 73 on the final exam. Given the standard deviation is 5, what is the value of t for a student who scored a 67?"Question 16Answera.-8.49b.-16.97c.-17.5d.-7.07Clear my choiceQuestion 17Not yet answeredMarked out of 1.00Flag questionTipsQuestion textTI=83 graphing calculators are more useful in which of the following subject functions?Question 17Answera.Statistics, trigonometry, and algebrab.Only statistics and algebrac.Only statisticsd.Only statistics and trigonometryClear my choiceQuestion 18Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhat is an outlier?Question 18Answera.an observation that may indicate that the distribution is skewed and that one should be very cautious in using tools or intuitions that assume a normal distributionb.an observation that is numerically distant from the rest of the datac.an observation that is often indicative either of measurement error or of the population having a heavy-tailed distributiond.all of these answersClear my choiceQuestion 19Not yet answeredMarked out of 1.00Flag questionTipsQuestion textWhen is the root-mean-square especially useful?Question 19Answera.when a data set includes both positive and negative numbersb.when a data set includes both discrete and continuous valuesc.when a data set includes exclusively positive numbersd.when a data set includes exclusively negative numbersClear my choiceQuestion 20Not yet answeredMarked out of 1.00Flag questionTipsQuestion textLooking at a scatter plot and seeing how close the points are to a line helps to determine what about the statistical relationship?Question 20Answera.verticalityb.strengthc.horizontalityd.direction